--- /dev/null
+/*
+ * event-class.c
+ *
+ * Babeltrace CTF IR - Event class
+ *
+ * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <babeltrace/ctf-ir/fields-internal.h>
+#include <babeltrace/ctf-ir/field-types-internal.h>
+#include <babeltrace/ctf-ir/event-class.h>
+#include <babeltrace/ctf-ir/event-class-internal.h>
+#include <babeltrace/ctf-ir/stream-class.h>
+#include <babeltrace/ctf-ir/stream-class-internal.h>
+#include <babeltrace/ctf-ir/trace-internal.h>
+#include <babeltrace/ctf-ir/validation-internal.h>
+#include <babeltrace/ctf-ir/utils.h>
+#include <babeltrace/ref.h>
+#include <babeltrace/ctf-ir/attributes-internal.h>
+#include <babeltrace/compiler.h>
+
+static
+void bt_ctf_event_class_destroy(struct bt_object *obj);
+
+struct bt_ctf_event_class *bt_ctf_event_class_create(const char *name)
+{
+ int ret;
+ struct bt_value *obj = NULL;
+ struct bt_ctf_event_class *event_class = NULL;
+
+ if (bt_ctf_validate_identifier(name)) {
+ goto error;
+ }
+
+ event_class = g_new0(struct bt_ctf_event_class, 1);
+ if (!event_class) {
+ goto error;
+ }
+
+ bt_object_init(event_class, bt_ctf_event_class_destroy);
+ event_class->fields = bt_ctf_field_type_structure_create();
+ if (!event_class->fields) {
+ goto error;
+ }
+
+ event_class->attributes = bt_ctf_attributes_create();
+ if (!event_class->attributes) {
+ goto error;
+ }
+
+ obj = bt_value_integer_create_init(-1);
+ if (!obj) {
+ goto error;
+ }
+
+ ret = bt_ctf_attributes_set_field_value(event_class->attributes,
+ "id", obj);
+ if (ret) {
+ goto error;
+ }
+
+ BT_PUT(obj);
+
+ obj = bt_value_string_create_init(name);
+ if (!obj) {
+ goto error;
+ }
+
+ ret = bt_ctf_attributes_set_field_value(event_class->attributes,
+ "name", obj);
+ if (ret) {
+ goto error;
+ }
+
+ BT_PUT(obj);
+
+ return event_class;
+
+error:
+ BT_PUT(event_class);
+ BT_PUT(obj);
+ return event_class;
+}
+
+const char *bt_ctf_event_class_get_name(struct bt_ctf_event_class *event_class)
+{
+ struct bt_value *obj = NULL;
+ const char *name = NULL;
+
+ if (!event_class) {
+ goto end;
+ }
+
+ obj = bt_ctf_attributes_get_field_value(event_class->attributes,
+ BT_CTF_EVENT_CLASS_ATTR_NAME_INDEX);
+ if (!obj) {
+ goto end;
+ }
+
+ if (bt_value_string_get(obj, &name)) {
+ name = NULL;
+ }
+
+end:
+ BT_PUT(obj);
+ return name;
+}
+
+int64_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class)
+{
+ struct bt_value *obj = NULL;
+ int64_t ret = 0;
+
+ if (!event_class) {
+ ret = -1;
+ goto end;
+ }
+
+ obj = bt_ctf_attributes_get_field_value(event_class->attributes,
+ BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
+ if (!obj) {
+ goto end;
+ }
+
+ if (bt_value_integer_get(obj, &ret)) {
+ ret = -1;
+ }
+
+ if (ret < 0) {
+ /* means ID is not set */
+ ret = -1;
+ goto end;
+ }
+
+end:
+ BT_PUT(obj);
+ return ret;
+}
+
+int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class,
+ uint32_t id)
+{
+ int ret = 0;
+ struct bt_value *obj = NULL;
+ struct bt_ctf_stream_class *stream_class = NULL;
+
+
+ if (!event_class) {
+ ret = -1;
+ goto end;
+ }
+
+ stream_class = bt_ctf_event_class_get_stream_class(event_class);
+ if (stream_class) {
+ /*
+ * We don't allow changing the id if the event class has already
+ * been added to a stream class.
+ */
+ ret = -1;
+ goto end;
+ }
+
+ obj = bt_ctf_attributes_get_field_value(event_class->attributes,
+ BT_CTF_EVENT_CLASS_ATTR_ID_INDEX);
+ if (!obj) {
+ goto end;
+ }
+
+ if (bt_value_integer_set(obj, id)) {
+ ret = -1;
+ goto end;
+ }
+
+end:
+ BT_PUT(obj);
+ BT_PUT(stream_class);
+ return ret;
+}
+
+int bt_ctf_event_class_set_attribute(
+ struct bt_ctf_event_class *event_class, const char *name,
+ struct bt_value *value)
+{
+ int ret = 0;
+
+ if (!event_class || !name || !value || event_class->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ if (!strcmp(name, "id") || !strcmp(name, "loglevel")) {
+ if (!bt_value_is_integer(value)) {
+ ret = -1;
+ goto end;
+ }
+ } else if (!strcmp(name, "name") || !strcmp(name, "model.emf.uri")) {
+ if (!bt_value_is_string(value)) {
+ ret = -1;
+ goto end;
+ }
+ } else {
+ /* unknown attribute */
+ ret = -1;
+ goto end;
+ }
+
+ /* "id" special case: >= 0 */
+ if (!strcmp(name, "id")) {
+ int64_t val;
+
+ ret = bt_value_integer_get(value, &val);
+
+ if (ret) {
+ goto end;
+ }
+
+ if (val < 0) {
+ ret = -1;
+ goto end;
+ }
+ }
+
+ ret = bt_ctf_attributes_set_field_value(event_class->attributes,
+ name, value);
+
+end:
+ return ret;
+}
+
+int bt_ctf_event_class_get_attribute_count(
+ struct bt_ctf_event_class *event_class)
+{
+ int ret = 0;
+
+ if (!event_class) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_attributes_get_count(event_class->attributes);
+
+end:
+ return ret;
+}
+
+const char *
+bt_ctf_event_class_get_attribute_name(
+ struct bt_ctf_event_class *event_class, int index)
+{
+ const char *ret;
+
+ if (!event_class) {
+ ret = NULL;
+ goto end;
+ }
+
+ ret = bt_ctf_attributes_get_field_name(event_class->attributes, index);
+
+end:
+ return ret;
+}
+
+struct bt_value *
+bt_ctf_event_class_get_attribute_value(struct bt_ctf_event_class *event_class,
+ int index)
+{
+ struct bt_value *ret;
+
+ if (!event_class) {
+ ret = NULL;
+ goto end;
+ }
+
+ ret = bt_ctf_attributes_get_field_value(event_class->attributes, index);
+
+end:
+ return ret;
+}
+
+struct bt_value *
+bt_ctf_event_class_get_attribute_value_by_name(
+ struct bt_ctf_event_class *event_class, const char *name)
+{
+ struct bt_value *ret;
+
+ if (!event_class || !name) {
+ ret = NULL;
+ goto end;
+ }
+
+ ret = bt_ctf_attributes_get_field_value_by_name(event_class->attributes,
+ name);
+
+end:
+ return ret;
+
+}
+
+struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class(
+ struct bt_ctf_event_class *event_class)
+{
+ return (struct bt_ctf_stream_class *) bt_object_get_parent(event_class);
+}
+
+struct bt_ctf_field_type *bt_ctf_event_class_get_payload_type(
+ struct bt_ctf_event_class *event_class)
+{
+ struct bt_ctf_field_type *payload = NULL;
+
+ if (!event_class) {
+ goto end;
+ }
+
+ bt_get(event_class->fields);
+ payload = event_class->fields;
+end:
+ return payload;
+}
+
+int bt_ctf_event_class_set_payload_type(struct bt_ctf_event_class *event_class,
+ struct bt_ctf_field_type *payload)
+{
+ int ret = 0;
+
+ if (!event_class || !payload ||
+ bt_ctf_field_type_get_type_id(payload) !=
+ BT_CTF_TYPE_ID_STRUCT) {
+ ret = -1;
+ goto end;
+ }
+
+ bt_get(payload);
+ bt_put(event_class->fields);
+ event_class->fields = payload;
+end:
+ return ret;
+}
+
+int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class,
+ struct bt_ctf_field_type *type,
+ const char *name)
+{
+ int ret = 0;
+
+ if (!event_class || !type || bt_ctf_validate_identifier(name) ||
+ event_class->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ if (bt_ctf_field_type_get_type_id(event_class->fields) !=
+ BT_CTF_TYPE_ID_STRUCT) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_field_type_structure_add_field(event_class->fields,
+ type, name);
+end:
+ return ret;
+}
+
+int bt_ctf_event_class_get_field_count(
+ struct bt_ctf_event_class *event_class)
+{
+ int ret;
+
+ if (!event_class) {
+ ret = -1;
+ goto end;
+ }
+
+ if (bt_ctf_field_type_get_type_id(event_class->fields) !=
+ BT_CTF_TYPE_ID_STRUCT) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_field_type_structure_get_field_count(event_class->fields);
+end:
+ return ret;
+}
+
+int bt_ctf_event_class_get_field(struct bt_ctf_event_class *event_class,
+ const char **field_name, struct bt_ctf_field_type **field_type,
+ int index)
+{
+ int ret;
+
+ if (!event_class || index < 0) {
+ ret = -1;
+ goto end;
+ }
+
+ if (bt_ctf_field_type_get_type_id(event_class->fields) !=
+ BT_CTF_TYPE_ID_STRUCT) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_field_type_structure_get_field(event_class->fields,
+ field_name, field_type, index);
+end:
+ return ret;
+}
+
+struct bt_ctf_field_type *bt_ctf_event_class_get_field_by_name(
+ struct bt_ctf_event_class *event_class, const char *name)
+{
+ GQuark name_quark;
+ struct bt_ctf_field_type *field_type = NULL;
+
+ if (!event_class || !name) {
+ goto end;
+ }
+
+ if (bt_ctf_field_type_get_type_id(event_class->fields) !=
+ BT_CTF_TYPE_ID_STRUCT) {
+ goto end;
+ }
+
+ name_quark = g_quark_try_string(name);
+ if (!name_quark) {
+ goto end;
+ }
+
+ /*
+ * No need to increment field_type's reference count since getting it
+ * from the structure already does.
+ */
+ field_type = bt_ctf_field_type_structure_get_field_type_by_name(
+ event_class->fields, name);
+end:
+ return field_type;
+}
+
+struct bt_ctf_field_type *bt_ctf_event_class_get_context_type(
+ struct bt_ctf_event_class *event_class)
+{
+ struct bt_ctf_field_type *context_type = NULL;
+
+ if (!event_class || !event_class->context) {
+ goto end;
+ }
+
+ bt_get(event_class->context);
+ context_type = event_class->context;
+end:
+ return context_type;
+}
+
+int bt_ctf_event_class_set_context_type(
+ struct bt_ctf_event_class *event_class,
+ struct bt_ctf_field_type *context)
+{
+ int ret = 0;
+
+ if (!event_class || !context || event_class->frozen) {
+ ret = -1;
+ goto end;
+ }
+
+ if (bt_ctf_field_type_get_type_id(context) != BT_CTF_TYPE_ID_STRUCT) {
+ ret = -1;
+ goto end;
+ }
+
+ bt_get(context);
+ bt_put(event_class->context);
+ event_class->context = context;
+end:
+ return ret;
+
+}
+
+void bt_ctf_event_class_get(struct bt_ctf_event_class *event_class)
+{
+ bt_get(event_class);
+}
+
+void bt_ctf_event_class_put(struct bt_ctf_event_class *event_class)
+{
+ bt_put(event_class);
+}
+
+BT_HIDDEN
+int bt_ctf_event_class_set_stream_id(struct bt_ctf_event_class *event_class,
+ uint32_t stream_id)
+{
+ int ret = 0;
+ struct bt_value *obj;
+
+ obj = bt_value_integer_create_init(stream_id);
+
+ if (!obj) {
+ ret = -1;
+ goto end;
+ }
+
+ ret = bt_ctf_attributes_set_field_value(event_class->attributes,
+ "stream_id", obj);
+
+ if (event_class->frozen) {
+ bt_ctf_attributes_freeze(event_class->attributes);
+ }
+
+end:
+ BT_PUT(obj);
+ return ret;
+}
+
+static
+void bt_ctf_event_class_destroy(struct bt_object *obj)
+{
+ struct bt_ctf_event_class *event_class;
+
+ event_class = container_of(obj, struct bt_ctf_event_class, base);
+ bt_ctf_attributes_destroy(event_class->attributes);
+ bt_put(event_class->context);
+ bt_put(event_class->fields);
+ g_free(event_class);
+}
+
+BT_HIDDEN
+void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class)
+{
+ assert(event_class);
+ event_class->frozen = 1;
+ bt_ctf_field_type_freeze(event_class->context);
+ bt_ctf_field_type_freeze(event_class->fields);
+ bt_ctf_attributes_freeze(event_class->attributes);
+}
+
+BT_HIDDEN
+int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class,
+ struct metadata_context *context)
+{
+ int i;
+ int count;
+ int ret = 0;
+ struct bt_value *attr_value = NULL;
+
+ assert(event_class);
+ assert(context);
+
+ context->current_indentation_level = 1;
+ g_string_assign(context->field_name, "");
+ g_string_append(context->string, "event {\n");
+ count = bt_ctf_event_class_get_attribute_count(event_class);
+
+ if (count < 0) {
+ ret = -1;
+ goto end;
+ }
+
+ for (i = 0; i < count; ++i) {
+ const char *attr_name = NULL;
+
+ attr_name = bt_ctf_event_class_get_attribute_name(
+ event_class, i);
+ attr_value = bt_ctf_event_class_get_attribute_value(
+ event_class, i);
+
+ if (!attr_name || !attr_value) {
+ ret = -1;
+ goto end;
+ }
+
+ switch (bt_value_get_type(attr_value)) {
+ case BT_VALUE_TYPE_INTEGER:
+ {
+ int64_t value;
+
+ ret = bt_value_integer_get(attr_value, &value);
+
+ if (ret) {
+ goto end;
+ }
+
+ g_string_append_printf(context->string,
+ "\t%s = %" PRId64 ";\n", attr_name, value);
+ break;
+ }
+
+ case BT_VALUE_TYPE_STRING:
+ {
+ const char *value;
+
+ ret = bt_value_string_get(attr_value, &value);
+
+ if (ret) {
+ goto end;
+ }
+
+ g_string_append_printf(context->string,
+ "\t%s = \"%s\";\n", attr_name, value);
+ break;
+ }
+
+ default:
+ /* should never happen */
+ assert(false);
+ break;
+ }
+
+ BT_PUT(attr_value);
+ }
+
+ if (event_class->context) {
+ g_string_append(context->string, "\tcontext := ");
+ ret = bt_ctf_field_type_serialize(event_class->context,
+ context);
+ if (ret) {
+ goto end;
+ }
+ g_string_append(context->string, ";\n");
+ }
+
+ if (event_class->fields) {
+ g_string_append(context->string, "\tfields := ");
+ ret = bt_ctf_field_type_serialize(event_class->fields, context);
+ if (ret) {
+ goto end;
+ }
+ g_string_append(context->string, ";\n");
+ }
+
+ g_string_append(context->string, "};\n\n");
+end:
+ context->current_indentation_level = 0;
+ BT_PUT(attr_value);
+ return ret;
+}
+
+void bt_ctf_event_class_set_native_byte_order(
+ struct bt_ctf_event_class *event_class,
+ int byte_order)
+{
+ if (!event_class) {
+ return;
+ }
+
+ assert(byte_order == 0 || byte_order == LITTLE_ENDIAN ||
+ byte_order == BIG_ENDIAN);
+
+ bt_ctf_field_type_set_native_byte_order(event_class->context,
+ byte_order);
+ bt_ctf_field_type_set_native_byte_order(event_class->fields,
+ byte_order);
+}
projects / babeltrace.git / blobdiff